+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-20864 | |||||||||
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タイトル | Structure of two nucleosomes bridged by human PARP2 | |||||||||
マップデータ | two nucleosomes bridged by human PARP2 | |||||||||
試料 |
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キーワード | PARP2 / Nucleosome / Complex / Bridging / DNA BINDING PROTEIN-DNA complex | |||||||||
機能・相同性 | 機能・相同性情報 response to oxygen-glucose deprivation / hippocampal neuron apoptotic process / poly-ADP-D-ribose binding / positive regulation of cell growth involved in cardiac muscle cell development / NAD+-protein-serine ADP-ribosyltransferase activity / NAD DNA ADP-ribosyltransferase activity / NAD+-protein-aspartate ADP-ribosyltransferase activity / NAD+-protein-glutamate ADP-ribosyltransferase activity / DNA ADP-ribosylation / poly-ADP-D-ribose modification-dependent protein binding ...response to oxygen-glucose deprivation / hippocampal neuron apoptotic process / poly-ADP-D-ribose binding / positive regulation of cell growth involved in cardiac muscle cell development / NAD+-protein-serine ADP-ribosyltransferase activity / NAD DNA ADP-ribosyltransferase activity / NAD+-protein-aspartate ADP-ribosyltransferase activity / NAD+-protein-glutamate ADP-ribosyltransferase activity / DNA ADP-ribosylation / poly-ADP-D-ribose modification-dependent protein binding / HDR through MMEJ (alt-NHEJ) / DNA repair-dependent chromatin remodeling / NAD+ ADP-ribosyltransferase / protein auto-ADP-ribosylation / protein poly-ADP-ribosylation / NAD+-protein ADP-ribosyltransferase activity / site of DNA damage / decidualization / NAD+-protein poly-ADP-ribosyltransferase activity / 転移酵素; グリコシル基を移すもの; 五炭糖残基を移すもの / POLB-Dependent Long Patch Base Excision Repair / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / nucleosome binding / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / extrinsic apoptotic signaling pathway / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / nucleosomal DNA binding / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Inhibition of DNA recombination at telomere / telomere organization / Meiotic synapsis / Interleukin-7 signaling / RNA Polymerase I Promoter Opening / nucleotidyltransferase activity / epigenetic regulation of gene expression / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / DNA methylation / Regulation of endogenous retroelements by KRAB-ZFP proteins / Condensation of Prophase Chromosomes / HCMV Late Events / SIRT1 negatively regulates rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / innate immune response in mucosa / PRC2 methylates histones and DNA / Defective pyroptosis / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / lipopolysaccharide binding / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / DNA Damage Recognition in GG-NER / NoRC negatively regulates rRNA expression / base-excision repair / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / HDMs demethylate histones / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / heterochromatin formation / Dual Incision in GG-NER / PKMTs methylate histone lysines / Metalloprotease DUBs / Meiotic recombination / Pre-NOTCH Transcription and Translation / RMTs methylate histone arginines / Formation of Incision Complex in GG-NER / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / Transcriptional regulation of granulopoiesis / structural constituent of chromatin / UCH proteinases / antimicrobial humoral immune response mediated by antimicrobial peptide / nucleosome / double-strand break repair / nucleosome assembly / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / antibacterial humoral response / chromatin organization / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Factors involved in megakaryocyte development and platelet production / HATs acetylate histones / gene expression / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) / synthetic construct (人工物) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 10.5 Å | |||||||||
データ登録者 | Gaullier G / Morgan GP / Luger K | |||||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: PLoS One / 年: 2020 タイトル: Bridging of nucleosome-proximal DNA double-strand breaks by PARP2 enhances its interaction with HPF1. 著者: Guillaume Gaullier / Genevieve Roberts / Uma M Muthurajan / Samuel Bowerman / Johannes Rudolph / Jyothi Mahadevan / Asmita Jha / Purushka S Rae / Karolin Luger / 要旨: Poly(ADP-ribose) Polymerase 2 (PARP2) is one of three DNA-dependent PARPs involved in the detection of DNA damage. Upon binding to DNA double-strand breaks, PARP2 uses nicotinamide adenine ...Poly(ADP-ribose) Polymerase 2 (PARP2) is one of three DNA-dependent PARPs involved in the detection of DNA damage. Upon binding to DNA double-strand breaks, PARP2 uses nicotinamide adenine dinucleotide to synthesize poly(ADP-ribose) (PAR) onto itself and other proteins, including histones. PAR chains in turn promote the DNA damage response by recruiting downstream repair factors. These early steps of DNA damage signaling are relevant for understanding how genome integrity is maintained and how their failure leads to genome instability or cancer. There is no structural information on DNA double-strand break detection in the context of chromatin. Here we present a cryo-EM structure of two nucleosomes bridged by human PARP2 and confirm that PARP2 bridges DNA ends in the context of nucleosomes bearing short linker DNA. We demonstrate that the conformation of PARP2 bound to damaged chromatin provides a binding platform for the regulatory protein Histone PARylation Factor 1 (HPF1), and that the resulting HPF1•PARP2•nucleosome complex is enzymatically active. Our results contribute to a structural view of the early steps of the DNA damage response in chromatin. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_20864.map.gz | 59.8 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-20864-v30.xml emd-20864.xml | 32.6 KB 32.6 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_20864_fsc.xml | 9.3 KB | 表示 | FSCデータファイル |
画像 | emd_20864.png | 67.7 KB | ||
マスクデータ | emd_20864_msk_1.map | 64 MB | マスクマップ | |
Filedesc metadata | emd-20864.cif.gz | 8.1 KB | ||
その他 | emd_20864_half_map_1.map.gz emd_20864_half_map_2.map.gz | 49.7 MB 49.7 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-20864 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20864 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_20864_validation.pdf.gz | 949.7 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_20864_full_validation.pdf.gz | 949.2 KB | 表示 | |
XML形式データ | emd_20864_validation.xml.gz | 15.8 KB | 表示 | |
CIF形式データ | emd_20864_validation.cif.gz | 20.8 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20864 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20864 | HTTPS FTP |
-関連構造データ
関連構造データ | 6usjMC M: このマップから作成された原子モデル C: 同じ文献を引用 (文献) |
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類似構造データ | |
電子顕微鏡画像生データ | EMPIAR-10336 (タイトル: Structure of two nucleosomes bridged by human PARP2 Data size: 677.3 Data #1: Single-particle images of the PARP2-nucleosome complex [picked particles - single frame - unprocessed] Data #2: Unaligned multi-frame micrographs of the PARP2-nucleosome complex [micrographs - multiframe]) |
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_20864.map.gz / 形式: CCP4 / 大きさ: 64 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | two nucleosomes bridged by human PARP2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.271 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-マスク #1
ファイル | emd_20864_msk_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: half map 1
ファイル | emd_20864_half_map_1.map | ||||||||||||
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注釈 | half map 1 | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: half map 2
ファイル | emd_20864_half_map_2.map | ||||||||||||
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注釈 | half map 2 | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
+全体 : Two nucleosomes bridged by PARP2
+超分子 #1: Two nucleosomes bridged by PARP2
+超分子 #2: histone
+超分子 #3: DNA
+超分子 #4: PARP2
+分子 #1: Widom 601 DNA (160-MER)
+分子 #2: Widom 601 DNA (160-MER)
+分子 #3: Histone H3.1
+分子 #4: Histone H4
+分子 #5: Histone H2A
+分子 #6: Histone H2B type 1-J
+分子 #7: Poly [ADP-ribose] polymerase 2
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.5 構成要素:
詳細: Buffer was pH-adjusted and filtered through a 0.22 um filter. | |||||||||||||||
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グリッド | モデル: Quantifoil R1.2/1.3 / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY ARRAY / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 30 sec. / 前処理 - 雰囲気: AIR | |||||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 95 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV / 詳細: Blot time 2s, blot force 0. |
-電子顕微鏡法
顕微鏡 | FEI TECNAI F30 |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / デジタル化 - 画像ごとのフレーム数: 1-40 / 撮影したグリッド数: 1 / 実像数: 632 / 平均露光時間: 4.0 sec. / 平均電子線量: 56.1 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELD |
試料ステージ | 試料ホルダーモデル: GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER ホルダー冷却材: NITROGEN |
実験機器 | モデル: Tecnai F30 / 画像提供: FEI Company |
+画像解析
-原子モデル構築 1
初期モデル |
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精密化 | 空間: REAL / プロトコル: RIGID BODY FIT / 当てはまり具合の基準: Real-space CC | ||||||||||||||||||||||||||
得られたモデル | PDB-6usj: |